On August 4, 2014 the USFWS determined endangered species status under the Endangered Species Act of 1973, as amended, for the sharpnose shiner (Notropis oxyrhynchus) and smalleye shiner (N. buccula), two fish species from Texas.

The federal register document on the final rule of the Determination of Endangered Species Status for the Sharpnose Shiner and Smalleye Shiner can be downloaded here:

Critical habitat for the sharpnose shiner and smalleye shiner has been designated under the Act. USFWS has designated a single critical habitat unit divided into six subunits in Texas. These subunits occupy approximately 1,002 river kilometers, or approximately 623 miles, of the upper Brazos River basin as well as thirty meters of uplands on either side of the river channel. The six subunits are: 1) Upper Brazos River main stem, 2) Salt Fork of the Brazos River, 3) White River, 4) Double Mountain Fork of the Brazos River, 5) North Fork Double Mountain Fork of the Brazos River, and 6) South Fork Double Mountain Fork of the Brazos River. The sharpnose shiner and smalleye shiner currently occupy these stretches of the upper Brazos River basin.

The federal register document on the final rule of Designation of Critical Habitat for Sharpnose Shiner and Smalleye Shiner can be downloaded here: